1/* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.gallery3d.filtershow.filters; 18 19import com.android.gallery3d.R; 20 21public class ImageFilterSharpen extends ImageFilterRS { 22 23 private static final String LOGTAG = "ImageFilterSharpen"; 24 private ScriptC_convolve3x3 mScript; 25 26 public ImageFilterSharpen() { 27 mName = "Sharpen"; 28 } 29 30 @Override 31 public void createFilter(android.content.res.Resources res, float scaleFactor, 32 boolean highQuality) { 33 int w = mInPixelsAllocation.getType().getX(); 34 int h = mInPixelsAllocation.getType().getY(); 35 36 float p1 = mParameter * scaleFactor; 37 float value = p1 / 100.0f; 38 float f[] = new float[9]; 39 float p = value; 40 f[0] = -p; 41 f[1] = -p; 42 f[2] = -p; 43 f[3] = -p; 44 f[4] = 8 * p + 1; 45 f[5] = -p; 46 f[6] = -p; 47 f[7] = -p; 48 f[8] = -p; 49 if (mScript == null) { 50 mScript = new ScriptC_convolve3x3(getRenderScriptContext(), res, R.raw.convolve3x3); 51 } 52 mScript.set_gCoeffs(f); 53 mScript.set_gWidth(w); 54 mScript.set_gHeight(h); 55 } 56 57 @Override 58 public void runFilter() { 59 mScript.set_gIn(mInPixelsAllocation); 60 mScript.bind_gPixels(mInPixelsAllocation); 61 mScript.forEach_root(mInPixelsAllocation, mOutPixelsAllocation); 62 } 63 64} 65